ZOR - Methods and Models of Operations Research, Volume 34

Volume 34, Number 1, January 1990

Volume 34, Number 2, March 1990

Volume 34, Number 3, May 1990

Volume 34, Number 4, July 1990

Volume 34, Number 5, September 1990

Volume 34, Number 6, November 1990

maintained by Schloss Dagstuhl LZI at University of Trier